「TELECOMMUNICATIONS BUSINESS ACT」 period specified in paragraph (1) due to a natural disaster or other extenuating circumstances, he or she may extend such period upon application by the facilities-based telecommunications business operator. <Amended on Mar. 23, 2013; Jul. 26, 2017; Jun. 10, 2022> Article 16 (Modification of Registered Matters) (1) Where a facilities-based telecommunications business operator intends to modify important matters prescribed by Presidential Decree among the matters registered under Article 6, he or she shall file for registration of modification (including registration of modification through information and telecommunications networks) with the Minister of Science and ICT, as prescribed by Presidential Decree. <Amended on Mar. 23, 2013; Jul. 26, 2017; Dec. 24, 2018> (2) Articles 6 (2) and 15 shall apply mutatis mutandis to registration of modification under paragraph (1). <Amended on Oct. 15, 2014; Dec. 24, 2018> [Title Amended on Dec. 24, 2018] Article 17 (Concurrently Engaging in Other Business) (1) Where a facilities-based telecommunications business operator intends to engage in any of the following business, he or she shall obtain approval from the Minister of Science and ICT: Provided, That the foregoing shall not apply to a facilities-based telecommunications business operator whose telecommunications service sales of the preceding year do not exceed 30 billion won: <Amended on Mar. 23, 2013; Jul. 26, 2017; Jun. 10, 2022> 1. Communications equipment manufacturing business; 2. Information and communications construction business (excluding any improvement and integration business of telecommunications networks) prescribed in subparagraph 3 of Article 2 of the Information and Communications Construction Business Act; 3. Service business (excluding any improvement and integration business of telecommunications networks) prescribed in subparagraph 6 of Article 2 of the Information and Communications Construction Business Act. (2) The Minister of Science and ICT shall grant approval prescribed in paragraph (1) if it is deemed that a facilities-based telecommunications business operator is unlikely to impede the management of the telecommunications business due to the management of the business prescribed in paragraph (1), and that it is necessary for the development of telecommunications. <Amended on Mar. 23, 2013; Jul. 26, 2017> 법제처 15 국가법령정보센 터